The last quiddich match of the year was an easy victory against Hufflepuff. Finals went by fast, and Gryffindor once again won the house cup and quidditch cup. The year ended peacefully without any incidences between Sirius, Remus, Snape, and Peter. Harry sat on the Hogwarts Express with the Weasleys. Because of how the lunar calendar worked out, it was hard to decide the best time for a prank war, they decided to do it from July 30 until August 14, from half moon to half moon. Because those two weeks started with Harry's birthday, it was a perfect cover for having the Weasleys over. They also discussed getting together for the Quidditch World Cup. Harry wanted to prevent the death eater riots but couldn't tell the Weasleys.

After getting home, Harry explained to Sirius that there will be a death eater uprising at the Quidditch World Cup. Sirius owled Dumbledore who came over immediately.

"What do you know about the uprising?" Dumbledore asked.

"After the game, people will be celebrating and getting drunk," Harry explained. "In the confusion, a group of death eaters will put on their masks and attack muggles and muggle borns. The main victims will be a family named Roberts. When we go to the game, we need to make sure to be in his area."

"I'll take care of it," Dumbledore said.

"What are you going to do?" asked Harry.

"I still have to figure it out," confessed Dumbledore. "Do you have any ideas?"

"If we have enough people stationed around the Roberts, we could stop the death eaters before they start," Harry said. "We just need to put enough wards on our tents so they can't tell we're there."

"Who do you think should be involved?" Dumbledore asked.

"I would imagine you know more people than me, professor," Harry said, "but I think that with you, Professor McGonagall, Snape, Remus, Sirius, Mr. and Mrs. Weasley, Bill, Charlie, Percy, Aberforth, Moody, Tonks, and Kingsley, we should be fine, especially if you also count Fred, George, Ron, Ginny, and me."

"I'll work on it," Professor Dumbledore said.

July passed quickly, and Harry was very excited on July 30th, when Fred, George and Ron tumbled through his fireplace. Remus had already arrived that morning, and he and Sirius were gearing up for the prank war. Harry knew that this time he had the advantage. Fred and George already started some inventions.

"Want a candy?" Fred asked politely.

Sirius regarded them suspiciously while Remus popped a sweet into his mouth. The four boys laughed when Remus's tongue grew close to four feet. Sirius performed a counter spell and regarding the boys with increasing interest.

"What was that?" he asked, with a big smile.

"Ton Tongue Toffee," Fred told him.

"We invented it ourselves," George added.

"That's incredible!" Sirius said. "If you ever start your own company, let me know. I want to buy stocks."

"We're starting a company called Weasleys' Wizard Wheezes," George said.

"We'll discuss how much I want to invest after two weeks of you testing your products," Sirius said.

Harry helped the boys bring their things to their rooms.

"Where do Sirius and Remus keep their wands?" Fred asked.

"Probably in their pockets," Harry answered.

"Do they ever put them down?" asked George.

"Remus leaves his on the table when he's reading," Harry said. "Sirius sometimes lies down on the couch and leaves his wand on the floor."

"Let's switch their wands," Fred said.

They innocently left one fake wand on the table and another on the floor next to the couch. They gathered in a corner of the living room and waited to see what would happen. After a few minutes, Sirius walked in and picked up the wand from the table. It squeaked and turned into a giant rubber mouse. Once again, the boys couldn't stop laughing.

"I like your products," Sirius said. "Can you turn this back into a wand so I could try it on Remus?"

They did eagerly, and Sirius called Remus in.

"Look what your students can do," he said proudly. "Pick up the wand."

Remus did and dropped the mouse in shock.

"You boys learned well," he said. "I bet you both earned lots of OWLs."

"Three each," Fred and George said cheerfully.

Fred and George enjoyed displaying their inventions for the rest of the afternoon. That night, Harry took a shower, only to find that his shampoo was actually melted ice cream. He ran out of the bathroom screaming.

"Who messed with my shampoo?" he yelled as Sirius and Remus.

"You think the kids get to have all the fun?" Sirius asked.

Harry stormed into Sirius's bathroom and took his shampoo. He had a feeling he will have an interesting birthday.

Sirius and Remus didn't do any pranks the next day in honor of Harry's birthday, but Fred and George continued testing products. Two weeks passed with lots of original pranks on both sides. After two weeks, Sirius invested heavily in Weasleys' Wizarding Wheezes.

Harry was disappointed when his friends left, but they made up to meet at the Burrow before the Quidditch World Cup. The morning before the game, a large crowd gathered at the Burrow. All the Weasleys were there, along with Harry, Sirius, Remus, both Dumbledores, McGonagall, Snape, Moody, Tonks, and Kingsley.

"There's going to be a death eater riot at the Quidditch World Cup," Dumbledore announced.

"Is it wise to discuss this in front of children?" Mrs. Weasley asked.

"Considering that my main source if information is from a child, I think they need to be included," Dumbledore answered.

"How do you know the child is reliable?" Moody asked.

"I can vouch for him," Dumbledore said.

"Me too," Sirius added.

Remus and Snape nodded in agreement.

"Well, then, let's hear it from the child," Moody said.

"After the quidditch game, people are going to be celebrating late at night," Harry told everyone. "Death eaters are going to take advantage of the chaos to fire hexes at tents and torture muggles. The muggles that will be targeted are the Roberts family who is in charge of a campsite."

"How do you know?" Moody asked.

"I'm sorry," Harry said. "I can't answer that question."

"Why not?" demanded Moody.

"Every time I try, Dumbledore does a silencing hex on me before I could draw my wand to block it," Harry answered. "If I do get my wand out, he immobilizes me."

"You teaching that boy secrecy and lies, Albus," Aberforth said with a scowl.

"Just secrecy," Harry said. "And I'm delighted to meet someone who is as fed up with the need for constant secrecy as I am."

Moody gave Harry a piercing glare. Harry occulated.

"Why did you teach the boy occlumency?" Moody asked.

"He taught himself," Dumbledore answered.

"I don't like it," Moody grumbled. "So what's the plan, Potter?"

"Dumbledore is in charge of the plans," Harry said.

"Professor Dumbledore," Snape corrected.

"Yeah, that's who I mean," Harry said with a grin.

Fred, George, Ron, and Ginny started laughing.

"What's so funny?" Moody asked, glaring at them.

"You don't need to call me sir, professor," Ron said, doing his best to mimic Harry's voice.

They all started laughing again.

"Harry!" Sirius said, astounded. "Did you really talk to a professor like that?"

"Ask me when there are no professors present," Harry answered.

"And this is the boy we're trusting for information?" Moody said, scornfully.

"Look at it this way, Mr. Moody," Harry said. "If I was a good little boy, I wouldn't have stood up to Voldermort my first night at Hogwarts. I would have minded my business and let him steal the sorcerer's stone. I also would have let Peter continue living as Ron's pet rat, and Sirius would still be in Azkaban. At least I'm on the right side of the battle."

"If we're finished with the boy's information, maybe the children should leave," Moody said.

"My name hasn't been boy for the last three years," Harry said. "Once I started Hogwarts, I found out that my name is really Harry."

"Very funny, Potter," Moody said, but despite his sarcastic tone, he had a trace of a smile on his lips.

"I think the children should leave now," Molly suggested.

"Let's play quiddich," Harry said. "Me and Ginny against you three."

The five kids went outside. While they did fly a little, they were spending more time talking about what they want to do to the death eaters. They weren't planning on staying inside the tent like good little children. The day passed quickly, and all the kids were excited about tomorrow's game.